science

Ononis spinosa

Ononis spinosa is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ononis spinosa rather than just read about it. In short: Ononis spinosa is a flowering plant belonging to the family Fabaceae, that is commonly known as spiny restharrow or just restharrow. It is found throughout much of Europe including Britain, but rarely as far north as Scotland.

Key takeaways

Ononis spinosa belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ononis spinosa to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ononis spinosa from memory before moving on to harder problems.

Reference excerpt

Ononis spinosa is a flowering plant belonging to the family Fabaceae, that is commonly known as spiny restharrow or just restharrow. It is found throughout much of Europe including Britain, but rarely as far north as Scotland. It is closely related to Ononis repens (common restharrow); the two are considered conspecific by the Plants of the World Online database, with O. repens treated as a subspecies of O. spinosa as Ononis spinosa subsp. procurrens. The Botanical Society of Britain and Ireland treats them as separate species.

Description

Spiny restharrow is an upright, bushy perennial. The wiry, branched stem is downy and nearly always spiny and grows to a height of 60 cm (24 in). The leaves are small, dark green, oval or trifoliate, with toothed leaf-like stipules at their base. The flowers are deep pink and white, with the wing (side) petals shorter than the hooked keel petal (unlike O. repens, where the wings are as long as the keel), and the calyx usually shorter than the pod.

Distribution and habitat Spiny restharrow is found in southern temperate areas of Europe and Siberia. In Great Britain, it has a more southeasterly distribution than O. repens, occurring widely in central and southeastern England, scarce in Wales and southwestern and northern England, and only at a very few sites in the south of Scotland. It is not native in Ireland, only found there as a rare introduced plant. Its typical habitat is lime-rich, but nutrient-poor grassland on chalk and heavy, calcareous soils.

Historical use In medieval Russia, the plant was used for bulat steel. The details of the manufacturing process have been lost. It involved dipping the finished weapon into a vat containing a special liquid of which spiny restharrow extract was a part (the plant's name in Russian, stalnik, reflects its historical role), then holding the sword aloft while galloping on a horse, allowing it to dry and harden against the wind. In traditional Russian herbal medicine, it was used as an anodyne, antiphlogistic, aperient, coagulant and diuretic. A decoction of restharrow was used for eczema and other skin problems, hemorrhoids, chronic constipation, and infections of the anus.

References

External links Media related to Ononis spinosa at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with Ononis spinosa

Start with the simplest possible case. Write down what Ononis spinosa claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ononis spinosa before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ononis spinosa ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ononis spinosa

In research: Ononis spinosa appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ononis spinosa in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ononis spinosa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Botanical taxa named by Carl Linnaeus, Medicinal plants of Europe, Ononis, so understanding it makes those chapters shorter.
In everyday life: Look for Ononis spinosa outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Ononis spinosa in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ononis spinosa means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ononis spinosa out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ononis spinosa in simple terms?

Why does Ononis spinosa matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ononis spinosa?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ononis spinosa.